The entire BoFA launch and demise was just... weird to me. I was very active back then, buying all of the WD magazines, regularly looking at the website, etc. and I never once saw advertising for that game. It was only on one bored night of trawling through the website that I came across it- and bought it- and about a month later it was gone, with no notice. I didn't have the chance to grab any of the cool metal models for it. They clearly wanted the game to fail, which just seems like madness.
An Adeptus Titanicus relaunch could be good. I play Epic, but that would still interest me for the detailed Titan-on-Titan combat (regular Epic rules for Titans are very simple). New Titan models could be very welcome as well. There are current sculpts in the community though that are absolutely brilliant, so GW has already lost some sales potential there. Knights and Warlords are the main things lacking at the moment.